Good luck Dear one, you will get great advice from everyone here. I do want to slightly disagree with some of my sisters here only to this degree.
If she needs space, give her SPACE no watching the pets, no doing dinner, no breaks to go get her hair done, no being there ONLY when she wants and backing off when she doesn't.
If she can only spend time and get support from other recovering addicts, let them do all of that if they wish. As Lexie has pointed out, hanging in does not entitle you to a relationship after. If your heart is this involved, even though you may not say it out loud, the relationship is what you will be hoping for.
If she is like many on that path, she may be grateful for anything you do, but not hesitate to drop you once she finds some footing. Sticking around in a yo-yo semi supportive relationship is not healthy for YOU. Don't make her purgatory your own. If she comes back, great. If not, via con dios. There are many healthy women in the world with whom you can have a relationship that won't keep you worrying about relapses, driving drunk with children and the random madness you can read about on this site. (((Hugs)))